Miscellaneous ASM Patches

[shygoo]

Share SM64 ASM patches here. If you'd like to include lengthy code in your posts please use [spoiler] tags. Armips code is preferred.

[Kaze]

Show Contentceiling invis walls fix:

//walls on no trianlge grounded 80255B9C
//walls on invis wall grounded 80255c44
//251708 writes new values for speed and rotation
//8026B5F4

//80256b24 returns 2 for invis walls and 0 if its fine?
//802560ac stores 2 on sü+0x18 which gets returned above, modfy this?
//8025634C decides that v0 is dead
//80380E8C seems to move mario, somehow resets his pos if hes above a ceiling
//802563D8 actually moves mario


//80256278 needs to be changed to branch if its a false alarm

//(make ceilings push mario outwards)
.org 0x112a0
!test:
jal $29BF64 //adds RA by AC if no ceiling available
nop
lw t0, $0050 (SP)
mtc1 r0, f18
lwc1 f16, $004c (T0)
c.le.s f18, f16
nop
bc1f $11308
nop
swc1 f18, $004c (T0)

.org 0x56f64
!second:
lui t0, $8034
lw t1, $b1d4 (T0)
beq t1, r0, !yes
nop
lh t2, $0008 (T1)
sll t2, t2, $2 //only needed with extended boundaries?
mtc1 t2, f4
cvt.s.w f4, f4
lwc1 f14, $b1b0 (T0)

c.lt.s f4, f14
nop
bc1t !yes
nop
lui at, $4348
mtc1 at, f0
add.s f14, f14, f0
lh t2, $0006 (T1)
sll t2, t2, $2 //only needed with extended boundaries?
mtc1 t2, f4
cvt.s.w f4, f4
c.lt.s f14, f4
nop
bc1f !end
nop
//j $4

!yes:
addiu ra, ra, $00ac
jr ra
nop
!end:
lui t0, $8034
lw t1, $b1d4 (T0)
lui at, $4248
mtc1 at, f6
lwc1 f2, $001c (T1)
mul.s f2, f2, f6
lwc1 f4, $0024 (T1)
mul.s f4, f4, f6
lwc1 f0, $b1ac (T0)
add.s f0, f0, f2
swc1 f0, $b1ac (T0)

lwc1 f0, $b1b4 (T0)
add.s f0, f0, f4
swc1 f0, $b1b4 (T0)
//add some push here

!yesend:
jr ra
nop

.org 0x10c44
!grounded:
jal $29c030
addiu v0, r0, $0

.org 0x57030
!groundedwalls:

addiu ra, ra, $0000
jr ra
nop

---

Show Contentscale the game down/up (can be used to make giant levels without looking very off):

.org 0x861c0
!main:
addiu sp, sp, $ffe8
sw ra, $14 (SP)
lui t0, $8037
lui at, $3e00
mtc1 at, f6
lui t3, $3e80
mtc1 t3, f0
sw at, $fffc (T0)
lui t1, $800F
sw at, $0890 (T1)
div.s f10, f6, f0
lui at, $42c8
mtc1 at, f12
mul.s f12, f12, f10
cvt.w.s f12, f12
mfc1 t5, f12
sh t5, $0874 (T1)
lui t0, $8036
lw t0, $1158 (T0)
lui at, $4214
mtc1 at, f2
mul.s f2, f2, f10
swc1 f2, $01f8 (T0)
lui at, $4320
mtc1 at, f2
mul.s f2, f2, f10
swc1 f2, $01fc (T0)

!end:
lw ra, $14(SP)
jr ra
addiu sp, sp, $0018

.org 0x11b3c
!main2:
jal $2ca6d0

.org 0x11cb8
!main3:
nop
lw v0, $0018 (SP)
jal $2ca7d0


.org 0x10ea4
!main4:
nop
lw v0, $0028 (SP)
jal $2ca7d0

.org 0x10d90
!main5:
jal $2ca8d4


.org 0x856d0
!set:
sw r0, $0060 (t6)
lui t6, $8037
lwc1 f0, $fffc (T6)
lui at, $3e80
mtc1 at, f10
div.s f0, f0, f10
lwc1 f2, $0048 (A0)
swc1 f2, $fff0 (t6)
mul.s f2, f2, f0
swc1 f2, $0048 (A0)
lwc1 f4, $004c (A0)
swc1 f4, $fff4 (t6)
mul.s f4, f4, f0
swc1 f4, $004c (A0)
lwc1 f6, $0050 (A0)
swc1 f6, $fff8 (t6)
mul.s f6, f6, f0
swc1 f6, $0050 (A0)
jr ra
nop

.org 0x857d0
!set2:
lw a0, $0030 (SP)
lui t6, $8037
lwc1 f0, $fffc (T6)
lui at, $3e80
mtc1 at, f10
div.s f0, f10, f0
lwc1 f2, $0048 (A0)
swc1 f2, $fff0 (t6)
mul.s f2, f2, f0
swc1 f2, $0048 (A0)
lwc1 f4, $004c (A0)
swc1 f4, $fff4 (t6)
mul.s f4, f4, f0
swc1 f4, $004c (A0)
lwc1 f6, $0050 (A0)
swc1 f6, $fff8 (t6)
mul.s f6, f6, f0
swc1 f6, $0050 (A0)
jr ra
nop


.org 0x858d4
!set:
sw a0, $0030 (SP)
lui t6, $8037
lwc1 f0, $fffc (T6)
lui at, $3e80
mtc1 at, f10
div.s f0, f0, f10
lwc1 f2, $0048 (A0)
swc1 f2, $fff0 (t6)
mul.s f2, f2, f0
swc1 f2, $0048 (A0)
lwc1 f4, $004c (A0)
swc1 f4, $fff4 (t6)
mul.s f4, f4, f0
swc1 f4, $004c (A0)
lwc1 f6, $0050 (A0)
swc1 f6, $fff8 (t6)
mul.s f6, f6, f0
jr ra
swc1 f6, $0050 (A0)

.org 0x44384
!movecamtoriginal:
jal $2ca820

.org 0x44394
!movecamtonew:
jal $2ca720


.org 0x85820
!main17:
lui t6, $8037
lwc1 f0, $fffc (T6)
lui at, $3e80
mtc1 at, f10
div.s f0, f10, f0
addiu a1, r0, $0003
lui t0, $8034
!loop1:
lwc1 f2, $c6a4 (t0)
lwc1 f12, $b1ac (T0)
sub.s f2, f2, f12
mul.s f2, f2, f0
add.s f2, f2, f12
swc1 f2, $c6a4 (T0)
addiu a1, a1, $ffff
bne a1, r0, !loop1
addiu t0, t0, $4
lw a1, $001c (SP)
jr ra
lw a0, $0018 (SP)

.org 0x85720
!main18:
lw a0, $0018 (SP)
lui t6, $8037
lwc1 f0, $fffc (T6)
lui at, $3e80
mtc1 at, f10
div.s f0, f0, f10
addiu a1, r0, $0003
lui t0, $8034
!loop2:
lwc1 f2, $c6a4 (t0)
lwc1 f12, $b1ac (T0)
sub.s f2, f2, f12
mul.s f2, f2, f0
add.s f2, f2, f12
swc1 f2, $c6a4 (T0)
addiu a1, a1, $ffff
bne a1, r0, !loop2
addiu t0, t0, $4
addiu ra, ra, $000c
jr ra
nop

.org 0x1199c
!assf:
jal $2ca790
lui at, $4080

.org 0x1194c
!assfss:
jal $2ca790
lui at, $4080


.org 0x85790
!main19:
addiu sp, sp, $fffc
sw t0, $0000 (SP)
lui t0, $8037
lwc1 f0, $fffc (T0)
lui t0, $3e80
mtc1 t0, f10
div.s f0, f0, f10
mtc1 at, f6
mul.s f6, f6, f0
mtc1 at, f8
mul.s f8, f8, f0
mtc1 at, f10
mul.s f10, f10, f0
lw t0, $0000 (SP)
jr ra
addiu sp, sp, $0004


.org 0x11914
!assfss:
jal $2ca790
lui at, $4000

.org 0x11844
!assfss:
jal $2ca790
lui at, $4080

.org 0x1170c
!assfss:
jal $2ca790
lui at, $4000

.org 0x11688
!assfss:
jal $2ca790
lui at, $3f80

.org 0xf320
!safiuasbufiui:
jal $2ca86c


.org 0x8586c
!safiuasuif:
lui t0, $8034
lwc1 f2, $c528 (T0)
lui at, $3e80
mtc1 at, f14
lui t1, $8037
lwc1 f4, $fffc (T1)
sub.s f14, f14, f4
lui at, $c3c0
mtc1 at, f6
mul.s f14, f14, f6
add.s f2, f2, f14
jr ra
swc1 f2, $c528 (T0)

.org 0xf2bc
!safuiasbfzu:
jal $2ca8a0
sw a0, $0018 (SP)
lw t7, $000c (a0)
lw t8, $0098 (a0)
sw t7, $0000 (T8)

.org 0x858a0
!asfuaszuf:
lui t0, $8034
lwc1 f2, $c528 (T0)
lui at, $3e80
mtc1 at, f14
lui t1, $8037
lwc1 f4, $fffc (T1)
sub.s f14, f14, f4
lui at, $43c0
mtc1 at, f6
mul.s f14, f14, f6
add.s f2, f2, f14
jr ra
swc1 f2, $c528 (T0)

[bacon_consumes_all]

I made the checkpoints into star coins. There are a bunch of NOPs at the end because Nintendo sucks at optimizing.

Show Contentwenis:

//only 3 checkpoints to spawn star
.orga 0xAE0CC
ADDIU T0, R0, 0x03 // hiddenstarinit

.orga 0xAE12C
ADDIU AT, R0, 0x03 // hiddenstarloop

.orga 0xAE214
ORI AT, R0, 0x03 // checkpointloop

.orga 0xAE1C8
OR A1, A0, R0 // this line really bothered me

//re-do playsound
.orga 0xAE240
LUI A0, 0x700E ; wrong answer sound, change in the sound tool
JAL 0x2CA144
ORI A0, A0, 0x8081

//add 3 to coin count
LUI T4, 0x8034
LH T5, 0xB262(T4)
ADDIU T6, T5, 0x03
SH T6, 0xB262(T4)
LUI T5, 0x8036
LW T5, 0x1160 (T5)
SH R0, 0x74 (T5)
LW RA, 0x14 (SP)
JR RA
ADDIU SP, SP, 0x20
NOP
NOP
NOP
NOP
NOP

//behavior
.orga 0x21DD1C
.dw 0x00060000
.dw 0x11010001
.dw 0x23000000, 0x00640064
.dw 0x10050000
.dw 0x08000000
.dw 0x0F130800
.dw 0x0C000000, 0x802F31BC
.dw 0x09000000

[Eddio 0141]

code hook thing for armips

Show Contentfor compressed ROM (8mb one):

Code:

.headersize 0x80245000 ; replaces segment 02 loader with code loader .orga 0x3ac0 lui a0, 0x8037; copy to ram (80370000 [8703 line of codes free or 34812 bytes]) addiu a0, a0, 0x0000 lui t0, 0x007c ; rom address copy from (0x7cc6c0 for this) ori a1, t0, 0xc6c0 jal 0x80278504 ori a2, t0, 0xc700 ; rom addresss copy to jal execmycodeonce nop .orga 0x15F4 jal execeveryframe nop .headersize 0x7FBA3940 .orga 0x7cc6c0 execmycodeonce: ADDIU SP, SP, 0xFFE8 SW RA, 0x14(SP) lui t0, 0x0011; seg02 loader (NEED THIS OR GAME WON'T WORK) addiu a1, t0, 0x8a40 addiu a2, t0, 0x4750 jal 0x802787d8 addiu a0, r0, 0x0002 ; your code here that runs once at start up LW RA, 0x14(SP) JR RA ADDIU SP, SP, 0x18 execeveryframe: ADDIU SP, SP, 0xFFE4 SW RA, 0x14(SP) ; your code that runs everyframe here lui t6, 0x8033; do not delete this lw t6, 0xd568(t6); do not delete this as well LW RA, 0x14(SP) JR RA ADDIU SP, SP, 0x1c

Show Contentfor extended rom (uncompressed):

Code:

.headersize 0x80245000 ; replaces segment 02 loader with code loader .orga 0x3ac0 lui a0, 0x8037; copy to ram (80370000 [8703 line of codes free or 34812 bytes]) addiu a0, a0, 0x0000 lui t0, 0x007c ; rom address copy from (0x7cc6c0 for this) ori a1, t0, 0xc6c0 jal 0x80278504 ori a2, t0, 0xc700 ; rom addresss copy to jal execmycodeonce nop .orga 0x15F4 jal execeveryframe nop .headersize 0x7FBA3940 .orga 0x7cc6c0 execmycodeonce: ADDIU SP, SP, 0xFFE8 SW RA, 0x14(SP) lui a1, 0x0080; seg02 loader (NEED THIS OR GAME WON'T WORK) lui a2, 0x0082 ori a2, a2, 0xbb64 jal 0x802787d8 addiu a0, r0, 0x0002 ; your code here that runs once at start up LW RA, 0x14(SP) JR RA ADDIU SP, SP, 0x18 execeveryframe: ADDIU SP, SP, 0xFFE4 SW RA, 0x14(SP) ; your code that runs everyframe here lui t6, 0x8033; do not delete this lw t6, 0xd568(t6); do not delete this as well LW RA, 0x14(SP) JR RA ADDIU SP, SP, 0x1c

[David]

Show ContentAlways have "Exit Course" option available in the pause menu:

Code:

// Modify part of function 0x802DCA88 to allow the "Exit course" option to always be avaliable in pause menu, no matter what action Mario is currently doing. .orga 0x97B60 .fill 4*6, 0 // Replace 6 asm instructions with NOPs.

[Eddio 0141]

plays music when Mario has 0 HP for armips

it stores a byte in 0x80373e80 but you can look at the code and change the location

Show Contentrun this once at start up:

Code:

lui s5, 0x8037 sb r0, 0x3e80(s5) lui s5, 0x8034 ori s6, r0, 0x0008 sb s6, 0xb21e(s5)

Show Contentrun this every frame:

Code:

ADDIU SP, SP, 0xFFE4 SW RA, 0x14(SP) lui s5, 0x8037 lb s3, 0x3e80(s5) lui s4, 0x8034 lb s4, 0xb21e(s4) bnez s4, @@hpnotzero nop bnez s3, @@afterthatstuff nop add a0, r0, r0 addiu a2, r0, 0x0009 sb a2, 0x3e80(s5) jal 0x80320544 addiu a1, r0, 0x0009 b @@afterthatstuff nop @@hpnotzero: sb r0, 0x3e80(s5) @@afterthatstuff: lui t6, 0x8033 lw t6, 0xd568(t6) LW RA, 0x14(SP) JR RA ADDIU SP, SP, 0x1c

[simer]

I converted a couple of Kaze's patches to armips earlier and thought they might be useful to others. I also fixed his collision optimization patch so that it doesn't rely on extended boundaries.

• Elevator momentum fix
  
• Invisible walls fix
  
• Collision optimization
  

Other conversions may be added here later.

[Kaze]

disable hardcoded camera positions (apart from the level specific camera setting and the geo layout camera thing)


3baa0: beq r0, r0, ... this fixes the camera in DDD area 2.
3c2dc: beq r0, r0, ... this fixes hardcoded cam in area 2 in SSL
3b6c8: BEQ R0, R0, $0003B7EC fixes cam in BoB, WDW and THI
3d2bc: BEQ R0, R0, $0003D344 fixes cam in BBH, Inside castle and RR
3d9ac: BEQ R0, R0, $0003D9F8 fixes cam in BoB and WF
3e250: beq r0, r0, ... fixes cam in WDW
3e29c: beq r0, r0, $003E320 fixes cam in THI
3f800: BEQ R0, R0, $0003F81C fixes cam in SSL
3f874: BEQ R0, R0, $0003F8A4 fixes cam in SSL and Inside castle
3fc50: BEQ R0, R0, $0003FC94
42720: BEQ R0, R0, $0004284C foxes cam in CCM, SSL, SML, THI and TTM
46540: BEQ R0, R0, $00046644 fixes cam in ssl, ttc and lll
47328:BEQ R0, R0, $000473E0 fixes cam in BBH and inside castle
488a4: BEQ R0, R0, $00048910 fixes cam in inside castle and secret aquarium
4a218: BEQ R0, R0, $0004A5FC fixes cam in WDW, THI, TTC, DDD, WF, BBH, SSL, BoB
52c74: BEQ R0, R0, $00053024 fixes cam in LLL, DDD, WF, metal cap, TTM, CCM, aquarium

[Eddio 0141]

here i've revisited my code hooker and changed it into something much more better

Show Contentcode:

Code:

.headersize 0x80245000 .orga 0x396c; here it hooks code copy to ram lui a0, 0x8036 ori a0, a0, 0x7500; 0x7cc6c0 - end of all codes into 0x80367500 lui t0, 0x7c ori a1, t0, 0xc6c0 ori a2, t0, endcopy jal 0x80278504 nop jal execonce nop .orga 0x15f4 jal execeveryframe nop .headersize 0x7fb9ae40 .orga 0x7cc6c0 execonce: addiu sp, sp, 0xffec sw a0, 0x4(sp) sw a1, 0x8(sp) sw ra, 0xc(sp) ; executes once here (don't delete stuff around here unless you 100% know what you doing here) lw a0, 0x4(sp) lw a1, 0x8(sp) or a0, r0, r0 jal 0x80277ee0 lui a1, 0x8000 lui a0, 0x8034 lui a1, 0x8034 addiu a1, a1, 0xb044 addiu a0, a0, 0xb028 jal 0x803225a0 addiu a2, r0, 0x1 lw ra, 0xc(sp) jr ra addiu sp, sp, 0x14 execeveryframe: add s7, r0, ra ; your code that runs every frame (don't use s7 because it has return address but you can modify if you know what you doing) lui t6, 0x8033 add ra, r0, s7 jr ra lw t6, 0xd568(t6) codeend: .definelabel endcopy, (codeend - 0x7fb9ae40) - 0x7c0000

[shygoo]

Here's a patch for testing the setsound function
https://github.com/shygoo/misc/blob/mast...ndtest.asm

Code:

DPAD left, right -> select digit DPAD up, down    -> edit digit L                -> play sound R -> toggle setsound/setmusic testing

Edit: updated to include music testing

[Super Watermelon 64]

I made the checkpoints into star coins. There are a bunch of NOPs at the end because Nintendo sucks at optimizing.

Show Contentwenis:

//only 3 checkpoints to spawn star
.orga 0xAE0CC
ADDIU T0, R0, 0x03 // hiddenstarinit

.orga 0xAE12C
ADDIU AT, R0, 0x03 // hiddenstarloop

.orga 0xAE214
ORI AT, R0, 0x03 // checkpointloop

.orga 0xAE1C8
OR A1, A0, R0 // this line really bothered me

//re-do playsound
.orga 0xAE240
LUI A0, 0x700E ; wrong answer sound, change in the sound tool
JAL 0x2CA144
ORI A0, A0, 0x8081

//add 3 to coin count
LUI T4, 0x8034
LH T5, 0xB262(T4)
ADDIU T6, T5, 0x03
SH T6, 0xB262(T4)
LUI T5, 0x8036
LW T5, 0x1160 (T5)
SH R0, 0x74 (T5)
LW RA, 0x14 (SP)
JR RA
ADDIU SP, SP, 0x20
NOP
NOP
NOP
NOP
NOP

//behavior
.orga 0x21DD1C
.dw 0x00060000
.dw 0x11010001
.dw 0x23000000, 0x00640064
.dw 0x10050000
.dw 0x08000000
.dw 0x0F130800
.dw 0x0C000000, 0x802F31BC
.dw 0x09000000

Could you please make this into a .pff file?

[Miles]

I made the checkpoints into star coins. There are a bunch of NOPs at the end because Nintendo sucks at optimizing.

Show Contentwenis:

//only 3 checkpoints to spawn star
.orga 0xAE0CC
ADDIU T0, R0, 0x03 // hiddenstarinit

.orga 0xAE12C
ADDIU AT, R0, 0x03 // hiddenstarloop

.orga 0xAE214
ORI AT, R0, 0x03 // checkpointloop

.orga 0xAE1C8
OR A1, A0, R0 // this line really bothered me

//re-do playsound
.orga 0xAE240
LUI A0, 0x700E ; wrong answer sound, change in the sound tool
JAL 0x2CA144
ORI A0, A0, 0x8081

//add 3 to coin count
LUI T4, 0x8034
LH T5, 0xB262(T4)
ADDIU T6, T5, 0x03
SH T6, 0xB262(T4)
LUI T5, 0x8036
LW T5, 0x1160 (T5)
SH R0, 0x74 (T5)
LW RA, 0x14 (SP)
JR RA
ADDIU SP, SP, 0x20
NOP
NOP
NOP
NOP
NOP

//behavior
.orga 0x21DD1C
.dw 0x00060000
.dw 0x11010001
.dw 0x23000000, 0x00640064
.dw 0x10050000
.dw 0x08000000
.dw 0x0F130800
.dw 0x0C000000, 0x802F31BC
.dw 0x09000000

Could you please make this into a .pff file?

1. It's called .ppf, not .pff
2. You can easily assemble this code with Armips GUI, you can find it here: https://github.com/DavidSM64/SimpleArmipsGui/releases 
All you have to do is load the rom and code, and press assemble.

[David]

Code:

// Increases max draw distance by making the far value from the geo layout 0xA command an unsigned value.   // The max value you can use is 0xFF9C, since a higher value seems to create a weird visual glitch on console. .orga 0x36D2C // RAM address 0x8027BD2C lhu t1, 0x22(t7)

I've also included a tweak version of this patch as an attachment to this post.

[Kaze]

81287aa4 1000 - freeze cam in pause screen

---

fix donut platforms:
313468, 313480, - nop
313570 - beq r0, r0

---

grap steep ledges
.orga 0x1A758
B 0x1A770

[jesusyoshi54]

activate the yellow cap switch + have functional yellow box.

you'll have to import a different display list to the geo layout to have it be a different color

I changed it to use the moat draining eeprom byte as the save flag for it so pressing the switch will drain the moat in a vanilla rom

[jesusyoshi54]

Code:

811765b8 0c09 811765ba ea2c 811765bc 0000 811765be 0000 8127a8b0 27bd 8127a8b2 ffe8 8127a8b4 afbf 8127a8b6 0014 8127a8b8 3c08 8127a8ba 8034 8127a8bc 850a 8127a8be afa0 8127a8c0 8519 8127a8c2 b226 8127a8c4 1159 8127a8c6 0011 8127a8c8 314d 8127a8ca 0020 8127a8cc 15a0 8127a8ce 000c 8127a8d0 8509 8127a8d2 b22a 8127a8d4 314b 8127a8d6 c000 8127a8d8 1160 8127a8da 000c 8127a8dc 314f 8127a8de 4000 8127a8e0 15e0 8127a8e2 0002 8127a8e4 252c 8127a8e6 ffff 8127a8e8 252c 8127a8ea 0001 8127a8ec 0581 8127a8ee 0002 8127a8f0 a50a 8127a8f2 b226 8127a8f4 340c 8127a8f6 0045 8127a8f8 1000 8127a8fa 0004 8127a8fc a50c 8127a8fe b22a 8127a900 0120 8127a902 2825 8127a904 0c0c 8127a906 8151 8127a908 0000 8127a90a 2025 8127a90c 3c08 8127a90e 8034 8127a910 850a 8127a912 afa0 8127a914 1540 8127a916 0002 8127a918 3405 8127a91a 0030 8127a91c a500 8127a91e b226 8127a920 3c06 8127a922 8033 8127a924 34c6 8127a926 8388 8127a928 0c0b 8127a92a 58b6 8127a92c 8507 8127a92e b22a 8127a930 8fbf 8127a932 0014 8127a934 03e0 8127a936 0008 8127a938 27bd 8127a93a 0018

gs code that allows you to preview any music track in file select or the demo screen. A to go up a track, B to go down a track. L to play the music. Sound will die if you switch between two tracks that the game doesn't like
asm version attached

[jesusyoshi54]

fixes slopes, see video

https://www.youtube.com/watch?v=NbO67Mq7fTU

edit: original version only worked without ext boundaries, I have since made a new version for ext boundaries but I am not sure that all editor/rom manager versions use the same offset, so if it doesn't work you will have to go into your rom with debugger and look around 80381710 in ram. You will want to set the offset for the second .orga in the ext boundaries to match the line after the two add.s commands that appear in a row.

[jesusyoshi54]

Not really an asm patch but I made a set tile encoder. Here is the html.